21551117940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{640259}}^1$

素因数の和:640302

約数の個数: 144

約数和(自身を含む): 75509703360

約数和(自身を除く): 53958585420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 20, 22, 30, 33, 34, 36, 44, 45, 51, 55, 60, 66, 68, 85, 90, 99, 102, 110, 132, 153, 165, 170, 180, 187, 198, 204, 220, 255, 306, 330, 340, 374, 396, 495, 510, 561, 612, 660, 748, 765, 935, 990, 1020, 1122, 1530, 1683, 1870, 1980, 2244, 2805, 3060, 3366, 3740, 5610, 6732, 8415, 11220, 16830, 33660, 640259, 1280518, 1920777, 2561036, 3201295, 3841554, 5762331, 6402590, 7042849, 7683108, 9603885, 10884403, 11524662, 12805180, 14085698, 19207770, 21128547, 21768806, 23049324, 28171396, 28811655, 32653209, 35214245, 38415540, 42257094, 43537612, 54422015, 57623310, 63385641, 65306418, 70428490, 84514188, 97959627, 105642735, 108844030, 115246620, 119728433, 126771282, 130612836, 140856980, 163266045, 195919254, 211285470, 217688060, 239456866, 253542564, 316928205, 326532090, 359185299, 391838508, 422570940, 478913732, 489798135, 598642165, 633856410, 653064180, 718370598, 979596270, 1077555897, 1197284330, 1267712820, 1436741196, 1795926495, 1959192540, 2155111794, 2394568660, 3591852990, 4310223588, 5387779485, 7183705980, 10775558970, 21551117940]

約数ペア:

[(1, 21551117940), (2, 10775558970), (3, 7183705980), (4, 5387779485), (5, 4310223588), (6, 3591852990), (9, 2394568660), (10, 2155111794), (11, 1959192540), (12, 1795926495), (15, 1436741196), (17, 1267712820), (18, 1197284330), (20, 1077555897), (22, 979596270), (30, 718370598), (33, 653064180), (34, 633856410), (36, 598642165), (44, 489798135), (45, 478913732), (51, 422570940), (55, 391838508), (60, 359185299), (66, 326532090), (68, 316928205), (85, 253542564), (90, 239456866), (99, 217688060), (102, 211285470), (110, 195919254), (132, 163266045), (153, 140856980), (165, 130612836), (170, 126771282), (180, 119728433), (187, 115246620), (198, 108844030), (204, 105642735), (220, 97959627), (255, 84514188), (306, 70428490), (330, 65306418), (340, 63385641), (374, 57623310), (396, 54422015), (495, 43537612), (510, 42257094), (561, 38415540), (612, 35214245), (660, 32653209), (748, 28811655), (765, 28171396), (935, 23049324), (990, 21768806), (1020, 21128547), (1122, 19207770), (1530, 14085698), (1683, 12805180), (1870, 11524662), (1980, 10884403), (2244, 9603885), (2805, 7683108), (3060, 7042849), (3366, 6402590), (3740, 5762331), (5610, 3841554), (6732, 3201295), (8415, 2561036), (11220, 1920777), (16830, 1280518), (33660, 640259)]